Cita APA (7a ed.)
Sayer, J. A. (1999). Forest protected areas. Center for International Forestry Research.
Cita Chicago Style (17a ed.)
Sayer, Jeffrey A. Forest Protected Areas. Center for International Forestry Research, 1999.
Cita MLA (9a ed.)
Sayer, Jeffrey A. Forest Protected Areas. Center for International Forestry Research, 1999.
Precaución: Estas citas no son 100% exactas.